It's a shame that the file sharing announced and included in the SDK from January has been completely pooched and replaced by manual (multi-step) iTunes-based file syncing which also requires multiple import/export steps in the iPad app and doesn't allow sharing of documents between applications:

http://www.macobserver.com/tmo/article/file_sharing_with_an_ipad_ugh/

Here's a case of Apple both limiting functionality and making the product difficult to use. Shame.
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Bruno
Twisted Melon : Fine Mac OS Software